Results 1 to 4 of 4
  1. #1
    Join Date
    Aug 2008
    Posts
    76

    Unanswered: HADR- NEtwork failure server reboot

    Hi,


    I have a question with HADR Network failure.

    Why does a server ( primary or standby) reboot when it is isolated from network ( single network between primary and standby ) ?

    IBM doc says to avoid split brain . Can anyone explain it in more detail ?

    Thanks
    Panditt

  2. #2
    Join Date
    Jun 2003
    Location
    Toronto, Canada
    Posts
    5,516
    Provided Answers: 1
    "Split brain" means that both parts of the cluster think they are primary. If network connection breaks up between them, the primary has no way of knowing that the former standby has performed the takeover and is now also primary.

  3. #3
    Join Date
    May 2003
    Location
    USA
    Posts
    5,737
    The best way to prevent split brain is to use a Virtual IP that gets moved to the primary server along with the execution of the HADR Takeover command.
    M. A. Feldman
    IBM Certified DBA on DB2 for Linux, UNIX, and Windows
    IBM Certified DBA on DB2 for z/OS and OS/390

  4. #4
    Join Date
    Aug 2008
    Posts
    76
    Thanks a lot

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •